#include <iostream>
inline double square(double x) {return (x) * (x);}
int main(int argv, char *argc[])
{
    using namespace std;
    double a, b;
    double c = 13.0;
    a = square(5.0);
    b = square(4.5 + 7.5);
    cout << "a = " << a  << ", b = " << b << endl;
    cout << "c = " << c;
    cout << ", c squared = " << square(c++) << endl;
    cout << "Now c = " << c << endl;
    return 0;
}
